also yesterday vice president joe biden presented president obama the refmtions for stemming gun violation. tomorrow the president will present the proposal to the media. that will happen at 11:00 eastern at the white house. c-span will have coverage. more from the summit on reducing gun violation yesterday to take us the news conference at 4:00 p.m. eastern. >> so we are going to start the program now. i'd like to ask the presenters on the first panel to please take their seats. and i just want to say that there's information on the website about each of the bios of our speakers. i first thought i could say this is an all-star cast. then i started thinking, many of these people aren't just all-stars. they are like hall of fame as far as researchers and gun violence. so we are going to start our first presentation with dr. matthew miller because i can't go on and on. i'm going say one sentence about each speaker. dr. miller is a preimminent expert who published numerous articles that addressed the question he's going to address today, which is the relationship between gun vainlt and -- ava